O.S.

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English[edit]

Noun[edit]

O.S. (countable and uncountable, plural O.S.'s)

  1. (countable, computing) Initialism of operating system.
  2. (calendar systems) Abbreviation of Old Style.
  3. (eyewear) Initialism of O.S. (oculus sinister).; (the left eye from the patient's point of view) (in eyeglass and contact lens prescriptions)

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Anagrams[edit]


Latin[edit]

Noun[edit]

O.S.

  1. (Can we verify(+) this sense?) (eyewear) O.S. (oculus sinister) (the left eye from the patient's point of view)

Related terms[edit]